1,2-Benzisothiazol-3(2H)-One CAS 2634-33-5
Purity >95%In StockPharmaceutical Standards
| CAS No. | 2634-33-5 |
| Molecular Formula | C7H5NOS |
| Molecular Weight | 151.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
High-purity 1,2-Benzisothiazol-3(2H)-One (CAS 2634-33-5) pharmaceutical standards reference standard. Molecular formula: C7H5NOS. Molecular weight: 151.19 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C7H5NOS |
| Molecular Weight | 151.19 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- Dotinurad Impurity 78 (CAS 1823931-79-8)
- <SC>L</SC>-methionine-2-<SUP>13</SUP>C,<SUP>15</SUP>N (CAS 1202063-92-0)
- Perospirone Impurity 17 (CAS 40991-37-5)
- 2-Oxo-7-propoxy-2H-chromene-3-carboxylic acid (CAS 6093-74-9)
- 2-phenylfuro[3,2-b]pyridine (CAS 18068-82-1)
- 2-((1-Ethyl-5-phenyl-1H-imidazol-2-yl)thio)-N-(5-methylisoxazol-3-yl)acetamide (CAS 924177-20-8)
- 1-[(Ethoxymethyl)sulfanyl]-4-nitrobenzene (CAS 1881293-31-7)
- 2-(2,4-Difluorophenyl)acetohydrazide (CAS 925252-63-7)
- 4-(4-Fluorophenoxy)butan-2-ol (CAS 86718-13-0)
- D-allo-Thr5-Semaglutide (CAS CATO-C4X-2226243)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com